In 1973 Carl Sagan calculated that we were 0.7 on the Kardeshev Scale, and we are now 0.72:
http://wilsonweb.physics.harvard.edu...shev_scale.htm
Sagan also calculated that we were at H on his scale, possessing 10^13 bits of information:
https://sites.google.com/site/ourcou...ardashev-scale
With the Information Revolution, have we decupled the information store of our civilization yet?